The fertilizer size and its influence to the product quality are indroduced. To improve the quality of phosphate & compound fertilizer, and controll particle size should be strengthened in production.

• 介绍了对化肥粒度概念的理解、化肥粒度对肥料产品质量的影响。建议磷复肥生产时，应加强产品粒度控制，以提高产品质量。